Ear horn



June 20, 1933. R, U -rs 1,914,734-

EAR HORN Filed April 6, 1952 gr-vuc/vviov fUMU/VD BUTTS Patented June 20, 1933 a A 1 UNITED STATES'PATENT' oFFrcr:

Application filed April 6, 1932. Serial No. 603,628. I

This invention relates to ear horns or body having its curved bottom 10 and an open trumpets, and has for its object the producoutwardly flared upper end 11. A .suitable tion of a simple and eflicient means for faciliscreen 12 is placed over this open outer end tating the increase of sound or the magnify- 11 as shown clearly in the drawing. A diaing of sound to the extent that a person who is phragm 13 is secured in any suitable or departially deaf or hard-of-hearing may be ensired manner at 14, to the inner walls of the abled to hear an ordinary conversation. sound-catching cup 6 near the bottom thereof,

Another object of this invention is the pro and this diaphragm 13 carries an elongated duction of a simple and efficient ear horn or inverted deflector comb 15, the base of the l trumpet which is so constructed asto provide cone being secured to the diaphragm, as a diaphragm within the horn and is also proshown, and the apex 16 of the comb extending vided with means for deflecting the sound up upwardly into the open end 5 of the downthrough the tube which is adapted to be in- Wardly curved or bent portion 4 of the tube 1, serted into the car. as clearly shown in Figure 1. I

A further object of this invention is the As the sound enters the opening 11 of the production of an ear horn which consists of a c p 6, the sound will travel downwardly as minimum number of parts and which may be indicated bythe direction of the arrows, and

h l f t d will strike the diaphragm thereby being In the drawing greatly increased, and will be deflected up- 20 Figure 1 is a side elevation of the ear horn, wardly against'the side walls 17 of the cone a portion thereof being shown in section; 15, and the sound Will then pass in its magni- Figure 2 is a section taken on line 2-2 of fled tone up through the open end 5 of the Figure 1; d downwardly curved end 4 of the tube 1, and Figure 3 is a perspective view of the imout through the tube 1 into the shank 2, and

proved ear horn. from there into the ear of the user. The base By referring to the drawing it will be seen 10 of the cup-shaped sound-catching cup 6 is that 1 designates the main tube of the ear to be made of rigid and strong material to horn which preferably tapers toward its outer protect the diaphragm 13 against injury. It end and receives the removable and adjust: should be understood that the diaphragm 13 able shank 2 having an ear-piece extending i ffi i spaced from the lower end of laterally thereof. The Sh nk 2 1 m0unted the tube 1 to properly operate and the cone 15 p the mam P01131911 1 of the tube m such is mounted freely within the end 5 of the tube 1113111161 as to Permlt h Shank 2 t be 1 out of contact with the walls of the tube in lusted swung to Penmt ear"p1ece to be order that the diaphragm may have a free r d g ffi t g fi l f t i g f vibration to catch the sound passing into the e mam e 0 Om 1S provl e cup-shaped sound-catching member 6 and with a downwardly curved sound-catching th d h net 4 havin an open end 5, the main tube 1 magm y e Soun passmg t 9 Same up D through the tube 1.

bein larger at its inner end and taperin to- V 40 the Outer end which engages or fitS"intO It should be understood that certa n detail changes in the mechanical construction may the inner end of the adjustable shank 2. This tube 1 carries a sound-catching cup 6, and e p y d Wl hOut depart n f th this cup 6 is braced by means of a bracing P 9 lnventlon Solongas these changes member '7, the bracing member being secured fall the f p of pp Claims- N near the bottom of the cup, as indicated at 8, Having descr bed the invention, what is and also being secured to the underface of the Clalmed s new 15 2- tube 1, as indicated at 9. The brace 7 will not 1. An ear horn of the class described comonly brace the cup 6 but will also constitute an prising a sound-carrying tube, a sound-catcheflicient handle. ing cup, said tube communicating with the The cup 6 preferably is of an elongated cup, and a diaphragm carried by one end of the cup and arranged in spaced relation with respect to the sound-carrying tube.

2. An ear horn of the class described comprising a sound-carrying tube, a sound-catching cup, said tube communicating with the cup, a diaphragm carried by one end of the cup and arranged in spaced relation with respect to the sound-carrying tube, and a cone carried by the diaphragm and extending into the open end of said sound-carrying tube.

3. An ear horn of the class described comprising a sound-carrying tube, a sound-catching cup, said tube communicating with the cup, a diaphragm carried by one end of the cup and arranged in spaced relation with respect to the sound-carrying device, and an elongated tapering cone carried by the diaphragm and projecting up into the open end of said sound-carryin g tube.

In testimony whereof I aflix my signature.

EDMUND RIBUTTS. 

